/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:35:50,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:35:50,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:35:50,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:35:50,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:35:50,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:35:50,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:35:50,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:35:50,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:35:50,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:35:50,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:35:50,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:35:50,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:35:50,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:35:50,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:35:50,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:35:50,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:35:50,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:35:50,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:35:50,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:35:50,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:35:50,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:35:50,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:35:50,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:35:50,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:35:50,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:35:50,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:35:50,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:35:50,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:35:50,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:35:50,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:35:50,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:35:50,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:35:50,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:35:50,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:35:50,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:35:50,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:35:50,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:35:50,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:35:50,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:35:50,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:35:50,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:35:50,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:35:50,940 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:35:50,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:35:50,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:35:50,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:35:50,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:35:50,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:35:50,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:35:50,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:35:50,943 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:35:51,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:35:51,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:35:51,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:35:51,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:35:51,123 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:35:51,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c [2022-01-10 13:35:51,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5efcb34c6/995d5f1696164d6c81387ff1c98f7e45/FLAGbcf6a8065 [2022-01-10 13:35:51,801 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:35:51,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c [2022-01-10 13:35:51,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5efcb34c6/995d5f1696164d6c81387ff1c98f7e45/FLAGbcf6a8065 [2022-01-10 13:35:51,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5efcb34c6/995d5f1696164d6c81387ff1c98f7e45 [2022-01-10 13:35:51,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:35:51,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:35:51,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:35:51,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:35:51,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:35:51,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:51" (1/1) ... [2022-01-10 13:35:51,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456884ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:51, skipping insertion in model container [2022-01-10 13:35:51,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:51" (1/1) ... [2022-01-10 13:35:51,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:35:52,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:35:53,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[378560,378573] [2022-01-10 13:35:53,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[383339,383352] [2022-01-10 13:35:53,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:35:53,618 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:35:54,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[378560,378573] [2022-01-10 13:35:54,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[383339,383352] [2022-01-10 13:35:54,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:35:54,275 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:35:54,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54 WrapperNode [2022-01-10 13:35:54,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:35:54,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:35:54,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:35:54,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:35:54,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,683 INFO L137 Inliner]: procedures = 65, calls = 72, calls flagged for inlining = 67, calls inlined = 220, statements flattened = 15533 [2022-01-10 13:35:54,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:35:54,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:35:54,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:35:54,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:35:54,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:54,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:55,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:55,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:55,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:35:55,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:35:55,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:35:55,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:35:55,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (1/1) ... [2022-01-10 13:35:55,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:35:55,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:35:55,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:35:55,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:35:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:35:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:35:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:35:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:35:55,394 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:35:55,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:36:02,675 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:36:02,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:36:02,705 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-10 13:36:02,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:36:02 BoogieIcfgContainer [2022-01-10 13:36:02,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:36:02,712 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:36:02,712 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:36:02,713 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:36:02,715 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:36:02" (1/1) ... [2022-01-10 13:36:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:36:04 BasicIcfg [2022-01-10 13:36:04,119 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:36:04,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:36:04,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:36:04,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:36:04,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:35:51" (1/4) ... [2022-01-10 13:36:04,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf6da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:36:04, skipping insertion in model container [2022-01-10 13:36:04,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:54" (2/4) ... [2022-01-10 13:36:04,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf6da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:36:04, skipping insertion in model container [2022-01-10 13:36:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:36:02" (3/4) ... [2022-01-10 13:36:04,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf6da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:36:04, skipping insertion in model container [2022-01-10 13:36:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:36:04" (4/4) ... [2022-01-10 13:36:04,125 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.10.cil-1.cTransformedIcfg [2022-01-10 13:36:04,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:36:04,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:36:04,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:36:04,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:36:04,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:36:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 3559 states, 3555 states have (on average 1.7313642756680732) internal successors, (6155), 3558 states have internal predecessors, (6155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:04,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:04,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:04,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:04,253 INFO L85 PathProgramCache]: Analyzing trace with hash -136141347, now seen corresponding path program 1 times [2022-01-10 13:36:04,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:04,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283019956] [2022-01-10 13:36:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:04,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:04,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:04,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283019956] [2022-01-10 13:36:04,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283019956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:04,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:04,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:04,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642676477] [2022-01-10 13:36:04,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:04,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:04,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:04,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:04,603 INFO L87 Difference]: Start difference. First operand has 3559 states, 3555 states have (on average 1.7313642756680732) internal successors, (6155), 3558 states have internal predecessors, (6155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:04,915 INFO L93 Difference]: Finished difference Result 8255 states and 14007 transitions. [2022-01-10 13:36:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:04,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:04,947 INFO L225 Difference]: With dead ends: 8255 [2022-01-10 13:36:04,948 INFO L226 Difference]: Without dead ends: 4643 [2022-01-10 13:36:04,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:04,963 INFO L933 BasicCegarLoop]: 6056 mSDtfsCounter, 5927 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:04,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5927 Valid, 7864 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:36:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2022-01-10 13:36:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 4639. [2022-01-10 13:36:05,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6578947368421053) internal successors, (7686), 4638 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7686 transitions. [2022-01-10 13:36:05,130 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7686 transitions. Word has length 143 [2022-01-10 13:36:05,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:05,131 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7686 transitions. [2022-01-10 13:36:05,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7686 transitions. [2022-01-10 13:36:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:05,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:05,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:05,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:36:05,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:05,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:05,140 INFO L85 PathProgramCache]: Analyzing trace with hash -21204739, now seen corresponding path program 1 times [2022-01-10 13:36:05,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:05,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789973745] [2022-01-10 13:36:05,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:05,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:05,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:05,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789973745] [2022-01-10 13:36:05,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789973745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:05,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:05,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:05,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363755226] [2022-01-10 13:36:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:05,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:05,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,265 INFO L87 Difference]: Start difference. First operand 4639 states and 7686 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:05,358 INFO L93 Difference]: Finished difference Result 7139 states and 11384 transitions. [2022-01-10 13:36:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:05,375 INFO L225 Difference]: With dead ends: 7139 [2022-01-10 13:36:05,376 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:05,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,382 INFO L933 BasicCegarLoop]: 5983 mSDtfsCounter, 5970 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5970 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:05,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5970 Valid, 5983 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:05,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6561691113028474) internal successors, (7678), 4638 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7678 transitions. [2022-01-10 13:36:05,602 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7678 transitions. Word has length 143 [2022-01-10 13:36:05,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:05,603 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7678 transitions. [2022-01-10 13:36:05,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7678 transitions. [2022-01-10 13:36:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:05,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:05,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:05,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:36:05,614 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:05,615 INFO L85 PathProgramCache]: Analyzing trace with hash -571686435, now seen corresponding path program 1 times [2022-01-10 13:36:05,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:05,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577098101] [2022-01-10 13:36:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:05,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:05,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:05,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577098101] [2022-01-10 13:36:05,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577098101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:05,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:05,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:05,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226254547] [2022-01-10 13:36:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:05,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:05,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,689 INFO L87 Difference]: Start difference. First operand 4639 states and 7678 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:05,776 INFO L93 Difference]: Finished difference Result 7138 states and 11367 transitions. [2022-01-10 13:36:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:05,790 INFO L225 Difference]: With dead ends: 7138 [2022-01-10 13:36:05,790 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:05,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,799 INFO L933 BasicCegarLoop]: 5978 mSDtfsCounter, 5964 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5964 SdHoareTripleChecker+Valid, 5978 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:05,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5964 Valid, 5978 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6544434857635892) internal successors, (7670), 4638 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7670 transitions. [2022-01-10 13:36:05,893 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7670 transitions. Word has length 143 [2022-01-10 13:36:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:05,893 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7670 transitions. [2022-01-10 13:36:05,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7670 transitions. [2022-01-10 13:36:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:05,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:05,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:05,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:36:05,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:05,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:05,898 INFO L85 PathProgramCache]: Analyzing trace with hash -98167492, now seen corresponding path program 1 times [2022-01-10 13:36:05,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:05,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692112913] [2022-01-10 13:36:05,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:05,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:05,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:05,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692112913] [2022-01-10 13:36:05,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692112913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:05,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:05,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:05,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335499182] [2022-01-10 13:36:05,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:05,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:05,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:05,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:05,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,965 INFO L87 Difference]: Start difference. First operand 4639 states and 7670 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:06,066 INFO L93 Difference]: Finished difference Result 7136 states and 11348 transitions. [2022-01-10 13:36:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:06,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:06,080 INFO L225 Difference]: With dead ends: 7136 [2022-01-10 13:36:06,080 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:06,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,089 INFO L933 BasicCegarLoop]: 5973 mSDtfsCounter, 5957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5957 SdHoareTripleChecker+Valid, 5973 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:06,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5957 Valid, 5973 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6527178602243313) internal successors, (7662), 4638 states have internal predecessors, (7662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7662 transitions. [2022-01-10 13:36:06,190 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7662 transitions. Word has length 143 [2022-01-10 13:36:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:06,191 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7662 transitions. [2022-01-10 13:36:06,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7662 transitions. [2022-01-10 13:36:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:06,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:06,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:06,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:36:06,193 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1159565220, now seen corresponding path program 1 times [2022-01-10 13:36:06,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:06,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141292730] [2022-01-10 13:36:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:06,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:06,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:06,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141292730] [2022-01-10 13:36:06,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141292730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:06,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:06,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:06,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424400228] [2022-01-10 13:36:06,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:06,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:06,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:06,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:06,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,242 INFO L87 Difference]: Start difference. First operand 4639 states and 7662 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:06,367 INFO L93 Difference]: Finished difference Result 7135 states and 11331 transitions. [2022-01-10 13:36:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:06,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:06,381 INFO L225 Difference]: With dead ends: 7135 [2022-01-10 13:36:06,381 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:06,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,385 INFO L933 BasicCegarLoop]: 5968 mSDtfsCounter, 5951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5951 SdHoareTripleChecker+Valid, 5968 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:06,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5951 Valid, 5968 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6509922346850734) internal successors, (7654), 4638 states have internal predecessors, (7654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7654 transitions. [2022-01-10 13:36:06,501 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7654 transitions. Word has length 143 [2022-01-10 13:36:06,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:06,502 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7654 transitions. [2022-01-10 13:36:06,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7654 transitions. [2022-01-10 13:36:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:06,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:06,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:06,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:36:06,504 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash -778161860, now seen corresponding path program 1 times [2022-01-10 13:36:06,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:06,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276806810] [2022-01-10 13:36:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:06,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:06,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:06,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:06,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276806810] [2022-01-10 13:36:06,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276806810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:06,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:06,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:06,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411210954] [2022-01-10 13:36:06,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:06,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:06,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:06,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:06,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,566 INFO L87 Difference]: Start difference. First operand 4639 states and 7654 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:06,676 INFO L93 Difference]: Finished difference Result 7134 states and 11314 transitions. [2022-01-10 13:36:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:06,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:06,694 INFO L225 Difference]: With dead ends: 7134 [2022-01-10 13:36:06,695 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:06,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,701 INFO L933 BasicCegarLoop]: 5963 mSDtfsCounter, 5945 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5945 SdHoareTripleChecker+Valid, 5963 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:06,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5945 Valid, 5963 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:06,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6492666091458155) internal successors, (7646), 4638 states have internal predecessors, (7646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7646 transitions. [2022-01-10 13:36:06,816 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7646 transitions. Word has length 143 [2022-01-10 13:36:06,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:06,817 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7646 transitions. [2022-01-10 13:36:06,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7646 transitions. [2022-01-10 13:36:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:06,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:06,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:06,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:36:06,819 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash 823004187, now seen corresponding path program 1 times [2022-01-10 13:36:06,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:06,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664683255] [2022-01-10 13:36:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:06,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:06,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:06,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664683255] [2022-01-10 13:36:06,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664683255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:06,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:06,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:06,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268529649] [2022-01-10 13:36:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:06,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:06,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,859 INFO L87 Difference]: Start difference. First operand 4639 states and 7646 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:06,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:06,960 INFO L93 Difference]: Finished difference Result 7133 states and 11297 transitions. [2022-01-10 13:36:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:06,969 INFO L225 Difference]: With dead ends: 7133 [2022-01-10 13:36:06,969 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:06,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:06,975 INFO L933 BasicCegarLoop]: 5958 mSDtfsCounter, 5939 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 5958 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:06,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5939 Valid, 5958 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6475409836065573) internal successors, (7638), 4638 states have internal predecessors, (7638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7638 transitions. [2022-01-10 13:36:07,100 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7638 transitions. Word has length 143 [2022-01-10 13:36:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:07,101 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7638 transitions. [2022-01-10 13:36:07,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7638 transitions. [2022-01-10 13:36:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:07,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:07,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:07,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:36:07,103 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash 193234171, now seen corresponding path program 1 times [2022-01-10 13:36:07,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547772788] [2022-01-10 13:36:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:07,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:07,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:07,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547772788] [2022-01-10 13:36:07,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547772788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:07,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:07,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:07,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939869587] [2022-01-10 13:36:07,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:07,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:07,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:07,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:07,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,147 INFO L87 Difference]: Start difference. First operand 4639 states and 7638 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:07,256 INFO L93 Difference]: Finished difference Result 7132 states and 11280 transitions. [2022-01-10 13:36:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:07,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:07,265 INFO L225 Difference]: With dead ends: 7132 [2022-01-10 13:36:07,265 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:07,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,270 INFO L933 BasicCegarLoop]: 5953 mSDtfsCounter, 5933 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:07,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5933 Valid, 5953 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:07,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6458153580672994) internal successors, (7630), 4638 states have internal predecessors, (7630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7630 transitions. [2022-01-10 13:36:07,402 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7630 transitions. Word has length 143 [2022-01-10 13:36:07,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:07,403 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7630 transitions. [2022-01-10 13:36:07,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7630 transitions. [2022-01-10 13:36:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:07,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:07,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:07,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:36:07,406 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2112581659, now seen corresponding path program 1 times [2022-01-10 13:36:07,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:07,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156101331] [2022-01-10 13:36:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:07,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:07,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:07,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156101331] [2022-01-10 13:36:07,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156101331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:07,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:07,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:07,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478505673] [2022-01-10 13:36:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:07,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:07,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:07,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:07,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,445 INFO L87 Difference]: Start difference. First operand 4639 states and 7630 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:07,557 INFO L93 Difference]: Finished difference Result 7131 states and 11263 transitions. [2022-01-10 13:36:07,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:07,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:07,565 INFO L225 Difference]: With dead ends: 7131 [2022-01-10 13:36:07,565 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:07,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,571 INFO L933 BasicCegarLoop]: 5948 mSDtfsCounter, 5927 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:07,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5927 Valid, 5948 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6440897325280415) internal successors, (7622), 4638 states have internal predecessors, (7622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7622 transitions. [2022-01-10 13:36:07,742 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7622 transitions. Word has length 143 [2022-01-10 13:36:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:07,743 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7622 transitions. [2022-01-10 13:36:07,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7622 transitions. [2022-01-10 13:36:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:07,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:07,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:07,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:36:07,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:07,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1150639877, now seen corresponding path program 1 times [2022-01-10 13:36:07,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:07,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115500511] [2022-01-10 13:36:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:07,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:07,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:07,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115500511] [2022-01-10 13:36:07,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115500511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:07,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:07,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:07,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699216384] [2022-01-10 13:36:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:07,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:07,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:07,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,776 INFO L87 Difference]: Start difference. First operand 4639 states and 7622 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:07,864 INFO L93 Difference]: Finished difference Result 7130 states and 11246 transitions. [2022-01-10 13:36:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:07,871 INFO L225 Difference]: With dead ends: 7130 [2022-01-10 13:36:07,871 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:07,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:07,875 INFO L933 BasicCegarLoop]: 5943 mSDtfsCounter, 5921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:07,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5921 Valid, 5943 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6423641069887833) internal successors, (7614), 4638 states have internal predecessors, (7614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7614 transitions. [2022-01-10 13:36:07,965 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7614 transitions. Word has length 143 [2022-01-10 13:36:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:07,966 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7614 transitions. [2022-01-10 13:36:07,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7614 transitions. [2022-01-10 13:36:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:07,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:07,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:07,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:36:07,967 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:07,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:07,968 INFO L85 PathProgramCache]: Analyzing trace with hash 830522202, now seen corresponding path program 1 times [2022-01-10 13:36:07,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:07,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532065089] [2022-01-10 13:36:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:07,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:07,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:07,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532065089] [2022-01-10 13:36:07,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532065089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:07,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:07,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:08,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272647089] [2022-01-10 13:36:08,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:08,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:08,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:08,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,001 INFO L87 Difference]: Start difference. First operand 4639 states and 7614 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:08,110 INFO L93 Difference]: Finished difference Result 7129 states and 11229 transitions. [2022-01-10 13:36:08,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:08,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:08,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:08,118 INFO L225 Difference]: With dead ends: 7129 [2022-01-10 13:36:08,118 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:08,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,123 INFO L933 BasicCegarLoop]: 5912 mSDtfsCounter, 5790 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5790 SdHoareTripleChecker+Valid, 6020 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:08,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5790 Valid, 6020 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:08,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:08,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6354616048317514) internal successors, (7582), 4638 states have internal predecessors, (7582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7582 transitions. [2022-01-10 13:36:08,221 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7582 transitions. Word has length 143 [2022-01-10 13:36:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:08,222 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7582 transitions. [2022-01-10 13:36:08,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7582 transitions. [2022-01-10 13:36:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:08,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:08,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:08,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:36:08,223 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1057397575, now seen corresponding path program 1 times [2022-01-10 13:36:08,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:08,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933956883] [2022-01-10 13:36:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:08,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:08,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:08,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:08,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933956883] [2022-01-10 13:36:08,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933956883] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:08,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:08,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:08,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506750461] [2022-01-10 13:36:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:08,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:08,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,255 INFO L87 Difference]: Start difference. First operand 4639 states and 7582 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:08,363 INFO L93 Difference]: Finished difference Result 7128 states and 11164 transitions. [2022-01-10 13:36:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:08,371 INFO L225 Difference]: With dead ends: 7128 [2022-01-10 13:36:08,371 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:08,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,375 INFO L933 BasicCegarLoop]: 5894 mSDtfsCounter, 5772 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:08,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5772 Valid, 6001 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:08,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6285591026747195) internal successors, (7550), 4638 states have internal predecessors, (7550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7550 transitions. [2022-01-10 13:36:08,477 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7550 transitions. Word has length 143 [2022-01-10 13:36:08,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:08,477 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7550 transitions. [2022-01-10 13:36:08,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7550 transitions. [2022-01-10 13:36:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:08,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:08,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:08,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:36:08,478 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:08,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -242375784, now seen corresponding path program 1 times [2022-01-10 13:36:08,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:08,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553482555] [2022-01-10 13:36:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:08,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:08,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:08,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553482555] [2022-01-10 13:36:08,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553482555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:08,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:08,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:08,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883348867] [2022-01-10 13:36:08,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:08,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:08,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,507 INFO L87 Difference]: Start difference. First operand 4639 states and 7550 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:08,621 INFO L93 Difference]: Finished difference Result 7127 states and 11099 transitions. [2022-01-10 13:36:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:08,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:08,628 INFO L225 Difference]: With dead ends: 7127 [2022-01-10 13:36:08,628 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:08,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,632 INFO L933 BasicCegarLoop]: 5876 mSDtfsCounter, 5754 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5754 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:08,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5754 Valid, 5982 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:08,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:08,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6216566005176876) internal successors, (7518), 4638 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7518 transitions. [2022-01-10 13:36:08,759 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7518 transitions. Word has length 143 [2022-01-10 13:36:08,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:08,759 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7518 transitions. [2022-01-10 13:36:08,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7518 transitions. [2022-01-10 13:36:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:08,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:08,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:08,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:36:08,761 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:08,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:08,761 INFO L85 PathProgramCache]: Analyzing trace with hash -686521481, now seen corresponding path program 1 times [2022-01-10 13:36:08,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:08,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512540198] [2022-01-10 13:36:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:08,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:08,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:08,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512540198] [2022-01-10 13:36:08,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512540198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:08,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:08,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:08,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894464626] [2022-01-10 13:36:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:08,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:08,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:08,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:08,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,796 INFO L87 Difference]: Start difference. First operand 4639 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:08,940 INFO L93 Difference]: Finished difference Result 7126 states and 11034 transitions. [2022-01-10 13:36:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:08,948 INFO L225 Difference]: With dead ends: 7126 [2022-01-10 13:36:08,948 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:08,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:08,953 INFO L933 BasicCegarLoop]: 5858 mSDtfsCounter, 5736 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5736 SdHoareTripleChecker+Valid, 5963 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:08,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5736 Valid, 5963 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:09,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6147540983606556) internal successors, (7486), 4638 states have internal predecessors, (7486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7486 transitions. [2022-01-10 13:36:09,086 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7486 transitions. Word has length 143 [2022-01-10 13:36:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:09,086 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7486 transitions. [2022-01-10 13:36:09,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7486 transitions. [2022-01-10 13:36:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:09,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:09,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:09,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:36:09,088 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash -450843306, now seen corresponding path program 1 times [2022-01-10 13:36:09,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:09,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006975193] [2022-01-10 13:36:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:09,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:09,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006975193] [2022-01-10 13:36:09,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006975193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:09,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:09,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:09,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750345962] [2022-01-10 13:36:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:09,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:09,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,123 INFO L87 Difference]: Start difference. First operand 4639 states and 7486 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:09,255 INFO L93 Difference]: Finished difference Result 7125 states and 10969 transitions. [2022-01-10 13:36:09,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:09,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:09,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:09,263 INFO L225 Difference]: With dead ends: 7125 [2022-01-10 13:36:09,263 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:09,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,267 INFO L933 BasicCegarLoop]: 5840 mSDtfsCounter, 5718 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5718 SdHoareTripleChecker+Valid, 5944 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:09,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5718 Valid, 5944 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6078515962036237) internal successors, (7454), 4638 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7454 transitions. [2022-01-10 13:36:09,364 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7454 transitions. Word has length 143 [2022-01-10 13:36:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:09,364 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7454 transitions. [2022-01-10 13:36:09,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7454 transitions. [2022-01-10 13:36:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:09,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:09,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:09,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:36:09,366 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1941539765, now seen corresponding path program 1 times [2022-01-10 13:36:09,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:09,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65703458] [2022-01-10 13:36:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:09,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:09,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:09,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65703458] [2022-01-10 13:36:09,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65703458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:09,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:09,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:09,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045913949] [2022-01-10 13:36:09,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:09,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:09,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:09,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:09,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,397 INFO L87 Difference]: Start difference. First operand 4639 states and 7454 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:09,534 INFO L93 Difference]: Finished difference Result 7124 states and 10904 transitions. [2022-01-10 13:36:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:09,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:09,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:09,542 INFO L225 Difference]: With dead ends: 7124 [2022-01-10 13:36:09,542 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:09,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,546 INFO L933 BasicCegarLoop]: 5822 mSDtfsCounter, 5700 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:09,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5700 Valid, 5925 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:09,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6009490940465918) internal successors, (7422), 4638 states have internal predecessors, (7422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7422 transitions. [2022-01-10 13:36:09,646 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7422 transitions. Word has length 143 [2022-01-10 13:36:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:09,646 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7422 transitions. [2022-01-10 13:36:09,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7422 transitions. [2022-01-10 13:36:09,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:09,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:09,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:09,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:36:09,648 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:09,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:09,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1938888812, now seen corresponding path program 1 times [2022-01-10 13:36:09,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:09,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349936263] [2022-01-10 13:36:09,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:09,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:09,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:09,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349936263] [2022-01-10 13:36:09,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349936263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:09,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:09,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:09,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299903956] [2022-01-10 13:36:09,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:09,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:09,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,678 INFO L87 Difference]: Start difference. First operand 4639 states and 7422 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:09,829 INFO L93 Difference]: Finished difference Result 7122 states and 10837 transitions. [2022-01-10 13:36:09,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:09,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:09,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:09,835 INFO L225 Difference]: With dead ends: 7122 [2022-01-10 13:36:09,836 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:09,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,839 INFO L933 BasicCegarLoop]: 5804 mSDtfsCounter, 5681 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:09,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5681 Valid, 5906 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.5940465918895599) internal successors, (7390), 4638 states have internal predecessors, (7390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7390 transitions. [2022-01-10 13:36:09,940 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7390 transitions. Word has length 143 [2022-01-10 13:36:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:09,941 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7390 transitions. [2022-01-10 13:36:09,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7390 transitions. [2022-01-10 13:36:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:09,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:09,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:09,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:36:09,942 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:09,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash -439848461, now seen corresponding path program 1 times [2022-01-10 13:36:09,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:09,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249533753] [2022-01-10 13:36:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:09,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:09,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:09,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249533753] [2022-01-10 13:36:09,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249533753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:09,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:09,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:09,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578758466] [2022-01-10 13:36:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:09,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:09,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:09,972 INFO L87 Difference]: Start difference. First operand 4639 states and 7390 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:10,098 INFO L93 Difference]: Finished difference Result 7121 states and 10772 transitions. [2022-01-10 13:36:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:10,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:10,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:10,105 INFO L225 Difference]: With dead ends: 7121 [2022-01-10 13:36:10,105 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:10,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,109 INFO L933 BasicCegarLoop]: 5786 mSDtfsCounter, 5663 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5663 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:10,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5663 Valid, 5887 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:10,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.587144089732528) internal successors, (7358), 4638 states have internal predecessors, (7358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7358 transitions. [2022-01-10 13:36:10,219 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7358 transitions. Word has length 143 [2022-01-10 13:36:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:10,219 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7358 transitions. [2022-01-10 13:36:10,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7358 transitions. [2022-01-10 13:36:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:10,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:10,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:10,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:36:10,220 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:10,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1209044306, now seen corresponding path program 1 times [2022-01-10 13:36:10,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:10,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288374135] [2022-01-10 13:36:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:10,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:10,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:10,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288374135] [2022-01-10 13:36:10,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288374135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:10,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:10,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:10,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008427670] [2022-01-10 13:36:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:10,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:10,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,251 INFO L87 Difference]: Start difference. First operand 4639 states and 7358 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:10,372 INFO L93 Difference]: Finished difference Result 7120 states and 10707 transitions. [2022-01-10 13:36:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:10,380 INFO L225 Difference]: With dead ends: 7120 [2022-01-10 13:36:10,380 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:10,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,384 INFO L933 BasicCegarLoop]: 5768 mSDtfsCounter, 5645 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 5868 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:10,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5645 Valid, 5868 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.580241587575496) internal successors, (7326), 4638 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7326 transitions. [2022-01-10 13:36:10,494 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7326 transitions. Word has length 143 [2022-01-10 13:36:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:10,494 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7326 transitions. [2022-01-10 13:36:10,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7326 transitions. [2022-01-10 13:36:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:10,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:10,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:10,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:36:10,495 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash 103229554, now seen corresponding path program 1 times [2022-01-10 13:36:10,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169333525] [2022-01-10 13:36:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:10,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:10,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169333525] [2022-01-10 13:36:10,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169333525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:10,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:10,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:10,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670392555] [2022-01-10 13:36:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:10,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:10,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:10,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,532 INFO L87 Difference]: Start difference. First operand 4639 states and 7326 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:10,654 INFO L93 Difference]: Finished difference Result 7119 states and 10642 transitions. [2022-01-10 13:36:10,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:10,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:10,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:10,661 INFO L225 Difference]: With dead ends: 7119 [2022-01-10 13:36:10,661 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 13:36:10,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,665 INFO L933 BasicCegarLoop]: 5750 mSDtfsCounter, 5627 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5627 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:10,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5627 Valid, 5849 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:10,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 13:36:10,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 13:36:10,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.5733390854184641) internal successors, (7294), 4638 states have internal predecessors, (7294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7294 transitions. [2022-01-10 13:36:10,776 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7294 transitions. Word has length 143 [2022-01-10 13:36:10,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:10,776 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7294 transitions. [2022-01-10 13:36:10,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:10,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7294 transitions. [2022-01-10 13:36:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:10,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:10,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:10,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:36:10,777 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash -548634031, now seen corresponding path program 1 times [2022-01-10 13:36:10,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:10,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455811763] [2022-01-10 13:36:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:10,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:10,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:10,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455811763] [2022-01-10 13:36:10,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455811763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:10,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:10,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:10,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265876058] [2022-01-10 13:36:10,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:10,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:10,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:10,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:10,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:10,814 INFO L87 Difference]: Start difference. First operand 4639 states and 7294 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:11,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:11,026 INFO L93 Difference]: Finished difference Result 9268 states and 13421 transitions. [2022-01-10 13:36:11,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:11,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:11,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:11,039 INFO L225 Difference]: With dead ends: 9268 [2022-01-10 13:36:11,039 INFO L226 Difference]: Without dead ends: 6832 [2022-01-10 13:36:11,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:11,044 INFO L933 BasicCegarLoop]: 5751 mSDtfsCounter, 5545 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5545 SdHoareTripleChecker+Valid, 7353 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:11,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5545 Valid, 7353 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2022-01-10 13:36:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6824. [2022-01-10 13:36:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 6821 states have (on average 1.489664272100865) internal successors, (10161), 6823 states have internal predecessors, (10161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 10161 transitions. [2022-01-10 13:36:11,250 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 10161 transitions. Word has length 143 [2022-01-10 13:36:11,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:11,250 INFO L470 AbstractCegarLoop]: Abstraction has 6824 states and 10161 transitions. [2022-01-10 13:36:11,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 10161 transitions. [2022-01-10 13:36:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:11,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:11,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:11,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:36:11,252 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1888678320, now seen corresponding path program 1 times [2022-01-10 13:36:11,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:11,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100686096] [2022-01-10 13:36:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:11,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:11,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:11,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100686096] [2022-01-10 13:36:11,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100686096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:11,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:11,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:36:11,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617199020] [2022-01-10 13:36:11,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:11,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:36:11,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:11,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:36:11,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:36:11,295 INFO L87 Difference]: Start difference. First operand 6824 states and 10161 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:11,832 INFO L93 Difference]: Finished difference Result 14924 states and 20858 transitions. [2022-01-10 13:36:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:36:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:11,847 INFO L225 Difference]: With dead ends: 14924 [2022-01-10 13:36:11,847 INFO L226 Difference]: Without dead ends: 10307 [2022-01-10 13:36:11,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:36:11,853 INFO L933 BasicCegarLoop]: 5803 mSDtfsCounter, 4826 mSDsluCounter, 18092 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4826 SdHoareTripleChecker+Valid, 23895 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:11,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4826 Valid, 23895 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:36:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10307 states. [2022-01-10 13:36:12,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10307 to 6899. [2022-01-10 13:36:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6896 states have (on average 1.4808584686774942) internal successors, (10212), 6898 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 10212 transitions. [2022-01-10 13:36:12,124 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 10212 transitions. Word has length 143 [2022-01-10 13:36:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:12,124 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 10212 transitions. [2022-01-10 13:36:12,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 10212 transitions. [2022-01-10 13:36:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:12,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:12,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:12,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:36:12,125 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:12,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2097376623, now seen corresponding path program 1 times [2022-01-10 13:36:12,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:12,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603989080] [2022-01-10 13:36:12,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:12,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:12,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:12,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603989080] [2022-01-10 13:36:12,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603989080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:12,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:12,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:12,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481001737] [2022-01-10 13:36:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:12,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:12,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:12,199 INFO L87 Difference]: Start difference. First operand 6899 states and 10212 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:12,432 INFO L93 Difference]: Finished difference Result 11657 states and 16434 transitions. [2022-01-10 13:36:12,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:12,444 INFO L225 Difference]: With dead ends: 11657 [2022-01-10 13:36:12,444 INFO L226 Difference]: Without dead ends: 6899 [2022-01-10 13:36:12,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:12,453 INFO L933 BasicCegarLoop]: 5754 mSDtfsCounter, 5650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5650 SdHoareTripleChecker+Valid, 5754 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:12,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5650 Valid, 5754 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6899 states. [2022-01-10 13:36:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6899 to 6899. [2022-01-10 13:36:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6896 states have (on average 1.4788283062645011) internal successors, (10198), 6898 states have internal predecessors, (10198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 10198 transitions. [2022-01-10 13:36:12,680 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 10198 transitions. Word has length 143 [2022-01-10 13:36:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:12,680 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 10198 transitions. [2022-01-10 13:36:12,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 10198 transitions. [2022-01-10 13:36:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:12,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:12,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:12,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:36:12,681 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:12,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1071884624, now seen corresponding path program 1 times [2022-01-10 13:36:12,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:12,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866510993] [2022-01-10 13:36:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:12,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:12,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:12,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866510993] [2022-01-10 13:36:12,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866510993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:12,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:12,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:12,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33398005] [2022-01-10 13:36:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:12,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:12,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:12,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:12,722 INFO L87 Difference]: Start difference. First operand 6899 states and 10198 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:12,983 INFO L93 Difference]: Finished difference Result 11574 states and 16300 transitions. [2022-01-10 13:36:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:12,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:12,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:12,995 INFO L225 Difference]: With dead ends: 11574 [2022-01-10 13:36:12,995 INFO L226 Difference]: Without dead ends: 6830 [2022-01-10 13:36:13,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:13,000 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5505 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5505 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:13,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5505 Valid, 5811 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-01-10 13:36:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 6830. [2022-01-10 13:36:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 6827 states have (on average 1.4748791562911967) internal successors, (10069), 6829 states have internal predecessors, (10069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 10069 transitions. [2022-01-10 13:36:13,235 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 10069 transitions. Word has length 143 [2022-01-10 13:36:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:13,235 INFO L470 AbstractCegarLoop]: Abstraction has 6830 states and 10069 transitions. [2022-01-10 13:36:13,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 10069 transitions. [2022-01-10 13:36:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:36:13,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:13,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:13,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:36:13,236 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1480708849, now seen corresponding path program 1 times [2022-01-10 13:36:13,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:13,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646594976] [2022-01-10 13:36:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:13,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:13,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:13,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646594976] [2022-01-10 13:36:13,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646594976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:13,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:13,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:13,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115179728] [2022-01-10 13:36:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:13,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:13,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:13,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:13,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:13,288 INFO L87 Difference]: Start difference. First operand 6830 states and 10069 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:13,712 INFO L93 Difference]: Finished difference Result 15985 states and 21955 transitions. [2022-01-10 13:36:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 13:36:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:13,734 INFO L225 Difference]: With dead ends: 15985 [2022-01-10 13:36:13,734 INFO L226 Difference]: Without dead ends: 11316 [2022-01-10 13:36:13,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:13,743 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5543 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5543 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:13,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5543 Valid, 7285 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:13,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2022-01-10 13:36:14,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 11014. [2022-01-10 13:36:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11014 states, 11011 states have (on average 1.4039596766869493) internal successors, (15459), 11013 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11014 states to 11014 states and 15459 transitions. [2022-01-10 13:36:14,220 INFO L78 Accepts]: Start accepts. Automaton has 11014 states and 15459 transitions. Word has length 143 [2022-01-10 13:36:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:14,220 INFO L470 AbstractCegarLoop]: Abstraction has 11014 states and 15459 transitions. [2022-01-10 13:36:14,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 11014 states and 15459 transitions. [2022-01-10 13:36:14,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 13:36:14,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:14,225 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:14,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:36:14,226 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1551568667, now seen corresponding path program 1 times [2022-01-10 13:36:14,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726924949] [2022-01-10 13:36:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:14,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:14,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:14,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726924949] [2022-01-10 13:36:14,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726924949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:14,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:14,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:14,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509402181] [2022-01-10 13:36:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:14,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:14,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:14,289 INFO L87 Difference]: Start difference. First operand 11014 states and 15459 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:15,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:15,061 INFO L93 Difference]: Finished difference Result 28448 states and 38042 transitions. [2022-01-10 13:36:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:15,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 13:36:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:15,087 INFO L225 Difference]: With dead ends: 28448 [2022-01-10 13:36:15,087 INFO L226 Difference]: Without dead ends: 19601 [2022-01-10 13:36:15,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:15,100 INFO L933 BasicCegarLoop]: 5710 mSDtfsCounter, 5582 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5582 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:15,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5582 Valid, 7282 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:15,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19601 states. [2022-01-10 13:36:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19601 to 19033. [2022-01-10 13:36:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19033 states, 19030 states have (on average 1.355386232264845) internal successors, (25793), 19032 states have internal predecessors, (25793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19033 states to 19033 states and 25793 transitions. [2022-01-10 13:36:15,955 INFO L78 Accepts]: Start accepts. Automaton has 19033 states and 25793 transitions. Word has length 232 [2022-01-10 13:36:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:15,955 INFO L470 AbstractCegarLoop]: Abstraction has 19033 states and 25793 transitions. [2022-01-10 13:36:15,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:15,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19033 states and 25793 transitions. [2022-01-10 13:36:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 13:36:15,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:15,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:15,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:36:15,964 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash -210624260, now seen corresponding path program 1 times [2022-01-10 13:36:15,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:15,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778149596] [2022-01-10 13:36:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:15,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:16,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:16,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778149596] [2022-01-10 13:36:16,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778149596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:16,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:16,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:36:16,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807270995] [2022-01-10 13:36:16,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:16,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:36:16,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:36:16,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:36:16,042 INFO L87 Difference]: Start difference. First operand 19033 states and 25793 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:17,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:17,660 INFO L93 Difference]: Finished difference Result 51505 states and 68071 transitions. [2022-01-10 13:36:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:36:17,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 13:36:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:17,703 INFO L225 Difference]: With dead ends: 51505 [2022-01-10 13:36:17,703 INFO L226 Difference]: Without dead ends: 34705 [2022-01-10 13:36:17,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:36:17,723 INFO L933 BasicCegarLoop]: 5678 mSDtfsCounter, 3628 mSDsluCounter, 16722 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 22400 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:17,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3628 Valid, 22400 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:36:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34705 states. [2022-01-10 13:36:18,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34705 to 19081. [2022-01-10 13:36:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19081 states, 19078 states have (on average 1.3460530453925987) internal successors, (25680), 19080 states have internal predecessors, (25680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19081 states to 19081 states and 25680 transitions. [2022-01-10 13:36:18,793 INFO L78 Accepts]: Start accepts. Automaton has 19081 states and 25680 transitions. Word has length 232 [2022-01-10 13:36:18,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:18,793 INFO L470 AbstractCegarLoop]: Abstraction has 19081 states and 25680 transitions. [2022-01-10 13:36:18,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 19081 states and 25680 transitions. [2022-01-10 13:36:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 13:36:18,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:18,800 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:18,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:36:18,801 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash -471990278, now seen corresponding path program 1 times [2022-01-10 13:36:18,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:18,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558410797] [2022-01-10 13:36:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:18,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:18,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:18,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558410797] [2022-01-10 13:36:18,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558410797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:18,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:18,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:18,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944540830] [2022-01-10 13:36:18,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:18,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:18,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:18,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:18,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:18,855 INFO L87 Difference]: Start difference. First operand 19081 states and 25680 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:20,834 INFO L93 Difference]: Finished difference Result 52263 states and 67856 transitions. [2022-01-10 13:36:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 13:36:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:20,883 INFO L225 Difference]: With dead ends: 52263 [2022-01-10 13:36:20,883 INFO L226 Difference]: Without dead ends: 35439 [2022-01-10 13:36:20,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:20,908 INFO L933 BasicCegarLoop]: 5999 mSDtfsCounter, 5557 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5557 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:20,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5557 Valid, 7721 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:20,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35439 states. [2022-01-10 13:36:22,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35439 to 34903. [2022-01-10 13:36:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34903 states, 34900 states have (on average 1.3056733524355302) internal successors, (45568), 34902 states have internal predecessors, (45568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34903 states to 34903 states and 45568 transitions. [2022-01-10 13:36:22,959 INFO L78 Accepts]: Start accepts. Automaton has 34903 states and 45568 transitions. Word has length 232 [2022-01-10 13:36:22,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:22,960 INFO L470 AbstractCegarLoop]: Abstraction has 34903 states and 45568 transitions. [2022-01-10 13:36:22,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 34903 states and 45568 transitions. [2022-01-10 13:36:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 13:36:22,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:22,973 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:22,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:36:22,973 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash -597704200, now seen corresponding path program 1 times [2022-01-10 13:36:22,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:22,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748904601] [2022-01-10 13:36:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:22,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:23,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:36:23,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:23,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748904601] [2022-01-10 13:36:23,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748904601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:23,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:23,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:23,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288017140] [2022-01-10 13:36:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:23,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:23,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:23,017 INFO L87 Difference]: Start difference. First operand 34903 states and 45568 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:25,171 INFO L93 Difference]: Finished difference Result 67505 states and 86959 transitions. [2022-01-10 13:36:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 13:36:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:25,222 INFO L225 Difference]: With dead ends: 67505 [2022-01-10 13:36:25,222 INFO L226 Difference]: Without dead ends: 34773 [2022-01-10 13:36:25,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:25,248 INFO L933 BasicCegarLoop]: 5711 mSDtfsCounter, 1749 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 9669 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:25,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 9669 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:25,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34773 states. [2022-01-10 13:36:27,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34773 to 34773. [2022-01-10 13:36:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34773 states, 34770 states have (on average 1.306039689387403) internal successors, (45411), 34772 states have internal predecessors, (45411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34773 states to 34773 states and 45411 transitions. [2022-01-10 13:36:27,416 INFO L78 Accepts]: Start accepts. Automaton has 34773 states and 45411 transitions. Word has length 232 [2022-01-10 13:36:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:27,416 INFO L470 AbstractCegarLoop]: Abstraction has 34773 states and 45411 transitions. [2022-01-10 13:36:27,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 34773 states and 45411 transitions. [2022-01-10 13:36:27,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-10 13:36:27,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:27,428 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:27,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 13:36:27,428 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:27,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash -904002354, now seen corresponding path program 1 times [2022-01-10 13:36:27,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:27,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511433505] [2022-01-10 13:36:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:27,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:27,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:27,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511433505] [2022-01-10 13:36:27,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511433505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:27,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:27,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:27,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805475419] [2022-01-10 13:36:27,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:27,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:27,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:27,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:27,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:27,487 INFO L87 Difference]: Start difference. First operand 34773 states and 45411 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:31,109 INFO L93 Difference]: Finished difference Result 98782 states and 126353 transitions. [2022-01-10 13:36:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-01-10 13:36:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:31,336 INFO L225 Difference]: With dead ends: 98782 [2022-01-10 13:36:31,336 INFO L226 Difference]: Without dead ends: 66266 [2022-01-10 13:36:31,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:31,364 INFO L933 BasicCegarLoop]: 6073 mSDtfsCounter, 5556 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5556 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:31,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5556 Valid, 7793 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66266 states. [2022-01-10 13:36:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66266 to 64358. [2022-01-10 13:36:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64358 states, 64355 states have (on average 1.2837075596301764) internal successors, (82613), 64357 states have internal predecessors, (82613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64358 states to 64358 states and 82613 transitions. [2022-01-10 13:36:35,356 INFO L78 Accepts]: Start accepts. Automaton has 64358 states and 82613 transitions. Word has length 233 [2022-01-10 13:36:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:35,356 INFO L470 AbstractCegarLoop]: Abstraction has 64358 states and 82613 transitions. [2022-01-10 13:36:35,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 64358 states and 82613 transitions. [2022-01-10 13:36:35,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-10 13:36:35,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:35,380 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:35,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 13:36:35,380 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1208161711, now seen corresponding path program 1 times [2022-01-10 13:36:35,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753392244] [2022-01-10 13:36:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:35,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:36:35,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753392244] [2022-01-10 13:36:35,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753392244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:35,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:35,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:35,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595613094] [2022-01-10 13:36:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:35,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:35,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:35,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:35,417 INFO L87 Difference]: Start difference. First operand 64358 states and 82613 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:39,315 INFO L93 Difference]: Finished difference Result 126409 states and 161043 transitions. [2022-01-10 13:36:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-01-10 13:36:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:39,417 INFO L225 Difference]: With dead ends: 126409 [2022-01-10 13:36:39,418 INFO L226 Difference]: Without dead ends: 64229 [2022-01-10 13:36:39,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:39,463 INFO L933 BasicCegarLoop]: 5710 mSDtfsCounter, 1747 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 9668 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:39,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 9668 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64229 states. [2022-01-10 13:36:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64229 to 64229. [2022-01-10 13:36:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64229 states, 64226 states have (on average 1.2838725749696385) internal successors, (82458), 64228 states have internal predecessors, (82458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64229 states to 64229 states and 82458 transitions. [2022-01-10 13:36:43,365 INFO L78 Accepts]: Start accepts. Automaton has 64229 states and 82458 transitions. Word has length 233 [2022-01-10 13:36:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:43,366 INFO L470 AbstractCegarLoop]: Abstraction has 64229 states and 82458 transitions. [2022-01-10 13:36:43,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 64229 states and 82458 transitions. [2022-01-10 13:36:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-01-10 13:36:43,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:43,387 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:43,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 13:36:43,388 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 965497065, now seen corresponding path program 1 times [2022-01-10 13:36:43,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:43,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374580515] [2022-01-10 13:36:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:43,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:43,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:43,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374580515] [2022-01-10 13:36:43,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374580515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:43,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:43,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:36:43,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000308007] [2022-01-10 13:36:43,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:43,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:43,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:43,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:43,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:43,443 INFO L87 Difference]: Start difference. First operand 64229 states and 82458 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:36:50,583 INFO L93 Difference]: Finished difference Result 185981 states and 235990 transitions. [2022-01-10 13:36:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:36:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2022-01-10 13:36:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:36:50,785 INFO L225 Difference]: With dead ends: 185981 [2022-01-10 13:36:50,786 INFO L226 Difference]: Without dead ends: 124009 [2022-01-10 13:36:50,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:50,836 INFO L933 BasicCegarLoop]: 6125 mSDtfsCounter, 5554 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 7843 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:36:50,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5554 Valid, 7843 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:36:50,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124009 states.